Gearing.



- E. R. GREER & A. KRIEG.

BEARING.

APPLlCATlON FILED MAYIZ, 1913.

1,146,564. I Patented July 13, 1915.

BEST AVAILABLE COPY fijTATES PATENT @FFIQE.

EDWARD R. GREEK AND ALFRED KRIEG, 0F MINNEAPOLIS, MINNESOTA, ASSIGNORSTO EMERSON-BRANTINGI-IAM COMPANY, OF ROCKFORD, ILLINOIS, A CORPORATIONOF ILLINOIS.

GEARING.

master.

Specification of Letters Patent.

Patented July is, rare.

Application filed May 12 1913. Serial No. 767,072.

To all whom it may concern:

Be it known that we, EDWARD R. GREEK and ALFRED Kinno,.citizens of theUnited States, residing at Minneapolis, in the county of Hennepin andState of Minnesota, have invented certain new and useful'Improvements inGearing, of which the following is a specification.

This invention relates to the mounting of gears and more particularly tothe mounting of meshing gears carried by separate shafts.

It is the object ofy this invention to provide means cooperative in themounting of the gears whereby either of the shafts carrying the meshinggears may be removed from their operative position.

Referring more particularly to the construction of gearing disclosedtherein, where two bevel-pinions mounted upon a shaft,

each having their thrust against separate fixed bearings. are both inmesh with a single intermediatebevel gear mounted upon a shaft andalsohaving its thrust against a fixed bearing, it is our object toprovide means whereby either of the shafts carrying said gears may beremoved from their mounting without displacing any of the gears in theirconnectionswith their shafts.

In the accompanying drawings :Figure 1 shows a form of gear mountingillustrating the object of our invention. Fig. 2 is a detail view of theremovable collar mounted upon the counter-shaft, as taken on the line 22of Fig. 1.

To illustrate a condition of gear mounting to which our inventionapplies, a fragmentary embodiment of gear transmission mechanism isshown in the drawings, in which the casing for inclosing thetransmission mechanism is formed in sections and the top section isremoved, thus leaving the bottom section 3 and the gearing open to view.A. drive-shaft 4 is mounted in journal bearings 5 and 6 which are formedfixed with the casing 3, and mounted upon said shaft are clutch members7 and 8 loose upon the shaft and each carrying fixedly therewith thebevel pinions 9 and 10, respectively, drive bevel-gear 11 fixedlysecured to the shaft, spur-gears 12 adapted to cooperate with changespeed gears (not shown), and roller bearings 1.3 adjacent the journalbearings 6 and 7 to take the side thrust of the gears. A clutch member14 is splined to shaft 4 and slidable into and out of engagement withclutch members 7 and 8 by the operable member 15. A counter-shaft 16 ismounted in the fixed journal bearings 17 and 18 and carries fixedlytherewith the bevel gear 19 in mesh with both gears 9 and 10, andcarries also the spur-gear 20 adapted for driving purposes. A splitcollar 21 secured together by bolts 22 and having oil openings 231smounted loose upon shaft 16 adjacent the inner end of bearing 17, and aroller bearing 24; is mounted intermediate said collar and gear 19 totake the thrust from said gear.

When inoperation drive-shaft 4 is continuously driven and by shiftingclutch member 15, the counter-shaft 16 may be rotated in eitherdirection through the gearing. This relation of gear mounting will serveto illustrate our invention and further description of the transmissionmechanism is deemed unnecessary. V

In transmission mechanism of the above character, not embodying ourimprovements, when it is desired to remove either of the shafts for therepair of any of the 1nembers carried thereby, it is necessary, becauseof the three meshing gears and the fixed bearings, to remove both shaftstogether, raising straight up, as it will readily be seen that one ofthe shafts cannot be removed by itself unless either certain gears weremoved on their shaft out of mesh, a shaft removed longitudinally fromone of the gears. or that either shaft carrying a gear fixed be movedlongitudinally in its bearing. These mentioned means for removalare veryunsatisfactory, resulting in expended time and often injury to the partsin so endeavoring to remove them. In our improved construction byremoving the collar 21, the shaft 16 may be moved longitudinally thedistance of the width of said collar to disengage the gear 19 from thepinions, a clearance 25 between one face of bearing 18 and gear 20 beingallowed for such movement. This done, either of the shafts may beremoved separately and entire with the parts carried thereby in theirworking positions; and where formerly it required two men. one handlingeach shaft, to remove or assemble the gearing, the task may beaccomplished easily by one man.

o claim as our invention.

1. In gearing, the combination of a pair of relatively fixed coaxialsplit bearings spaced apart, a shaft journaled in said bearings, a pairof bevel-gears inter nosed between said bearings and mounte on saidshaft, a split bearing arranged on an axis at right angles to the saidshaft and being fixed with respect to the first named bearings, a shaftjournaled in the single bearing, a bevel-gear mounted on the lattershaft and being in mesh with the two bevelgears, the mounting of saidgears on their respective shafts being such that the gears are precludedby said bearings from moving out of mesh, the said gear mountingincluding an element interposed between one of the gears and the bearingadjacent thereto and being constructed and arranged so as to beremovable from the mounting without disturbing the bearings, whereby oneof the gears may be moved axially out of mesh to permit either shaft tobe raised from its bearing.

2. In gearing, the combination of a pair of spaced coaxial bearings, anda bearing interposed between said bearings and having its axis at rightangles to that of said bearings, a shaft journaled in the pair ofbearings a pair of bevel-gears mounted on said shaft intermediate saidbearings, a shaft journaled in the single bearing a bevel-gear mountedon the latter shaft and being in mesh with the pair of bevel gears,means interposed between and abutting each Copies of this patent may beobtained for five cents each, by addressing Washington, I). (3.

bevel-gear and the bearing adjacent thereto for precluding the gearsfrom unmeshing, said means including an element removable to permit oneof the gears to be moved axially to an unmeshing position. 7

3. In combination, in a gear transmission mechanism, a casing havingthree relatively fixed bearings, two bearings being coaxial and thethird bearing on an axis intermediate and at right angles to that of thecoaxial bearings, a shaft journaled in the coaxial bearings and a shaftjournaled in the single bearing, a pair of bevel-gears mounted on thefirst named shaft and being interposed between the coaxial bearings, abevelgear mounted on the second named shaft and being in mesh with thebevel-gears, and means mounted on the shafts interposed between andabutting the bevel gears and the bearings adjacent thereto forprecluding the gears from being unmeshed, said means including anelement movable out of opera tive position to permit one of the gears tobe moved axially to and unmeshing position.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

EDWARD R. GREER. ALFRED KRIEG.

lVitnesses:

C. F. NELSON, H. M. STREET.

the Commissioner of Patents,

